docs: def get_sanitizer_for(self, table_name, column_name):
          """
          Get sanitizer for given table and column name.
  
          :param table_name: Name of the database table.
          :type table_name: str
  
          :param column_name: Name of the database column.
          :type column_name: str
  
          :return: Sanitizer function or None if nothing is configured
          :rtype: Optional[Callable[[Optional[str]], Optional[str]]]
          """
          sanitizer_key = "%s.%s" % (table_name, column_name)
          return self.sanitizers.get(sanitizer_key)